6634872 has 48 divisors (see below), whose sum is σ = 18640440. Its totient is φ = 2210976.

The previous prime is 6634871. The next prime is 6634889. The reversal of 6634872 is 2784366.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 6⁶ + 6⁷ + 3² + 4¹¹ + 8 + 7⁵ + 2²¹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6634871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 238 + ... + 3650.

Almost surely, 2^6634872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6634872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9320220).

6634872 is an abundant number, since it is smaller than the sum of its proper divisors (12005568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6634872 is a wasteful number, since it uses less digits than its factorization.

6634872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3434 (or 3418 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 6634872 is about 2575.8245281851. The cubic root of 6634872 is about 187.9075295963.

The spelling of 6634872 in words is "six million, six hundred thirty-four thousand, eight hundred seventy-two".